OKay this is GM under stealth mode
He goes in rooms and checks if everything is fine there... (usualy in rooms with passcode or fireteam room with only 1-3 players
To see him, you need to have bone (visual) hack feature or Just turn On your aimbot and
you will always lock on him.
If he sees you hacking or supporting hacker (not kicking him) you get banned.
So the only way to avoid ban is to crash the game and change room.